  7980 ?        00:00:00 dbus-daemon
  8043 ?        00:00:00 gvfsd
  8048 ?        00:00:00 gvfsd-fuse
  8151 ?        00:00:00 ssh-agent
  8169 ?        00:00:00 at-spi-bus-laun
  8174 ?        00:00:00 dbus-daemon
  8179 ?        00:00:00 at-spi2-registr
  8206 ?        00:00:43 gnome-shell
  8216 ?        00:00:00 pulseaudio
  8231 ?        00:00:00 ibus-daemon
  8235 ?        00:00:00 ibus-dconf
  8240 ?        00:00:00 ibus-x11
  8243 ?        00:00:00 ibus-portal
  8252 ?        00:00:00 xdg-permission-
  8253 ?        00:00:00 gnome-shell-cal
  8267 ?        00:00:00 evolution-sourc
  8279 ?        00:00:00 goa-daemon
  8281 ?        00:00:00 mission-control
  8285 ?        00:00:00 gvfs-udisks2-vo
  8296 ?        00:00:00 gvfs-afc-volume
  8309 ?        00:00:00 gvfs-gphoto2-vo
  8315 ?        00:00:01 goa-identity-se
  8328 ?        00:00:00 gvfs-mtp-volume
  8337 ?        00:00:00 gvfs-goa-volume
  8361 ?        00:00:00 gsd-power
  8363 ?        00:00:00 gsd-print-notif
  8367 ?        00:00:00 gsd-rfkill
  8373 ?        00:00:00 gsd-screensaver
  8377 ?        00:00:00 gsd-sharing
  8381 ?        00:00:00 gsd-sound
  8384 ?        00:00:00 gsd-xsettings
  8386 ?        00:00:00 gsd-wacom
  8387 ?        00:00:00 gsd-smartcard
  8391 ?        00:00:00 gsd-account
  8407 ?        00:00:00 gsd-a11y-settin
  8409 ?        00:00:00 gsd-clipboard
  8415 ?        00:00:02 gsd-color
  8418 ?        00:00:00 gsd-datetime
  8421 ?        00:00:00 evolution-calen
  8422 ?        00:00:00 gsd-housekeepin
  8430 ?        00:00:00 gsd-keyboard
  8434 ?        00:00:00 gsd-media-keys
  8437 ?        00:00:00 gsd-mouse
  8470 ?        00:00:00 gsd-printer
  8487 ?        00:00:02 nautilus-deskto
  8489 ?        00:00:00 evolution-calen
  8498 ?        00:00:00 gvfsd-trash
  8514 ?        00:00:00 dconf-service
  8528 ?        00:00:16 vmtoolsd
  8529 ?        00:00:00 gsd-disk-utilit
  8531 ?        00:00:00 evolution-addre
  8532 ?        00:00:00 ibus-engine-sim
  8533 ?        00:00:00 seapplet
  8543 ?        00:00:00 abrt-applet
  8546 ?        00:00:01 gnome-software
  8562 ?        00:00:00 evolution-addre
  8566 ?        00:00:00 tracker-extract
  8572 ?        00:00:00 tracker-miner-a
  8575 ?        00:00:00 tracker-miner-f
  8585 ?        00:00:00 tracker-miner-u
  8606 ?        00:00:00 tracker-store
  9807 ?        00:00:00 gnome-terminal-
  9813 ?        00:00:00 gnome-pty-helpe
  9814 pts/0    00:00:00 bash
 10918 ?        00:00:00 gvfsd-metadata
 11256 ?        00:00:00 gvfsd-network
 11270 ?        00:00:00 gvfsd-dnssd
 11332 ?        00:00:00 obexd
 14326 ?        00:00:00 sshd
 14329 pts/1    00:00:00 bash
 15497 ?        00:00:00 nautilus
[root@localhost ithao]# ps -ef
UID         PID   PPID  C STIME TTY          TIME CMD
root          1      0  0 15:57 ?        00:00:03 /usr/lib/systemd/systemd --switched-root -
root          2      0  0 15:57 ?        00:00:00 [kthreadd]
root          3      2  0 15:57 ?        00:00:00 [ksoftirqd/0]
root          5      2  0 15:57 ?        00:00:00 [kworker/0:0H]
root          7      2  0 15:57 ?        00:00:00 [migration/0]
root          8      2  0 15:57 ?        00:00:00 [rcu_bh]
root          9      2  0 15:57 ?        00:00:01 [rcu_sched]
root         10      2  0 15:57 ?        00:00:00 [lru-add-drain]
root         11      2  0 15:57 ?        00:00:00 [watchdog/0]
root         13      2  0 15:57 ?        00:00:00 [kdevtmpfs]
root         14      2  0 15:57 ?        00:00:00 [netns]
root         15      2  0 15:57 ?        00:00:00 [khungtaskd]
root         16      2  0 15:57 ?        00:00:00 [writeback]
root         17      2  0 15:57 ?        00:00:00 [kintegrityd]
root         18      2  0 15:57 ?        00:00:00 [bioset]
root         19      2  0 15:57 ?        00:00:00 [bioset]
root         20      2  0 15:57 ?        00:00:00 [bioset]
root         21      2  0 15:57 ?        00:00:00 [kblockd]
root         22      2  0 15:57 ?        00:00:00 [md]
root         23      2  0 15:57 ?        00:00:00 [edac-poller]
root         24      2  0 15:57 ?        00:00:00 [watchdogd]
root         30      2  0 15:57 ?        00:00:03 [kswapd0]
root         31      2  0 15:57 ?        00:00:00 [ksmd]
root         32      2  0 15:57 ?        00:00:00 [khugepaged]
root         33      2  0 15:57 ?        00:00:00 [crypto]
root         41      2  0 15:57 ?        00:00:00 [kthrotld]
root         43      2  0 15:57 ?        00:00:00 [kmpath_rdacd]
root         44      2  0 15:57 ?        00:00:00 [kaluad]
root         45      2  0 15:57 ?        00:00:00 [kpsmoused]
root         47      2  0 15:57 ?        00:00:00 [ipv6_addrconf]
root         60      2  0 15:57 ?        00:00:00 [deferwq]
root         91      2  0 15:57 ?        00:00:00 [kauditd]
root        698      2  0 15:57 ?        00:00:00 [ata_sff]
root        716      2  0 15:57 ?        00:00:00 [scsi_eh_0]
root        724      2  0 15:57 ?        00:00:00 [scsi_tmf_0]
root        725      2  0 15:57 ?        00:00:00 [scsi_eh_1]
root        734      2  0 15:57 ?        00:00:00 [scsi_tmf_1]
root        889      2  0 15:57 ?        00:00:00 [ttm_swap]
root        895      2  0 15:57 ?        00:00:00 [irq/16-vmwgfx]
root       1733      2  0 15:57 ?        00:00:00 [nfit]
root       1735      2  0 15:57 ?        00:00:00 [mpt_poll_0]
root       1736      2  0 15:57 ?        00:00:00 [mpt/0]
root       1808      2  0 15:57 ?        00:00:00 [scsi_eh_2]
root       1815      2  0 15:57 ?        00:00:00 [scsi_tmf_2]
root       2921      2  0 15:57 ?        00:00:00 [kworker/0:1H]
root       2988      2  0 15:57 ?        00:00:00 [kdmflush]
root       2989      2  0 15:57 ?        00:00:00 [bioset]
root       3003      2  0 15:57 ?        00:00:00 [kdmflush]
root       3004      2  0 15:57 ?        00:00:00 [bioset]
root       3022      2  0 15:57 ?        00:00:00 [bioset]
root       3027      2  0 15:57 ?        00:00:00 [xfsalloc]
root       3032      2  0 15:57 ?        00:00:00 [xfs_mru_cache]
root       3035      2  0 15:57 ?        00:00:00 [xfs-buf/dm-0]
root       3038      2  0 15:57 ?        00:00:00 [xfs-data/dm-0]
root       3041      2  0 15:57 ?        00:00:00 [xfs-conv/dm-0]
root       3042      2  0 15:57 ?        00:00:00 [xfs-cil/dm-0]
root       3043      2  0 15:57 ?        00:00:00 [xfs-reclaim/dm-]
root       3044      2  0 15:57 ?        00:00:00 [xfs-log/dm-0]
root       3045      2  0 15:57 ?        00:00:00 [xfs-eofblocks/d]
root       3046      2  0 15:57 ?        00:00:02 [xfsaild/dm-0]
root       3116      1  0 15:57 ?        00:00:01 /usr/lib/systemd/systemd-journald
root       3137      1  0 15:57 ?        00:00:00 /usr/sbin/lvmetad -f
root       3147      1  0 15:57 ?        00:00:00 /usr/lib/systemd/systemd-udevd
root       4981      2  0 15:57 ?        00:00:00 [xfs-buf/sda1]
root       4988      2  0 15:57 ?        00:00:00 [xfs-data/sda1]
root       4989      2  0 15:57 ?        00:00:00 [xfs-conv/sda1]
root       4996      2  0 15:57 ?        00:00:00 [xfs-cil/sda1]
root       5003      2  0 15:57 ?        00:00:00 [xfs-reclaim/sda]
root       5005      2  0 15:57 ?        00:00:00 [xfs-log/sda1]
root       5006      2  0 15:57 ?        00:00:00 [xfs-eofblocks/s]
root       5016      2  0 15:57 ?        00:00:00 [xfsaild/sda1]
root       6536      1  0 15:57 ?        00:00:00 /sbin/auditd
root       6538   6536  0 15:57 ?        00:00:00 /sbin/audispd
root       6540   6538  0 15:57 ?        00:00:00 /usr/sbin/sedispatch
root       6543      2  0 15:57 ?        00:00:00 [rpciod]
root       6544      2  0 15:57 ?        00:00:00 [xprtiod]
root       6568      1  0 15:57 ?        00:00:00 /usr/sbin/smartd -n -q never
root       6569      1  0 15:57 ?        00:00:00 /usr/lib/systemd/systemd-logind
polkitd    6571      1  0 15:57 ?        00:00:09 /usr/lib/polkit-1/polkitd --no-debug
rpc        6572      1  0 15:57 ?        00:00:00 /sbin/rpcbind -w
root       6573      1  0 15:57 ?        00:00:01 /sbin/rngd -f
avahi      6574      1  0 15:57 ?        00:00:00 avahi-daemon: running [linux.local]
root       6581      1  0 15:57 ?        00:00:00 /usr/sbin/alsactl -s -n 19 -c -E ALSA_CONF
libstor+   6583      1  0 15:57 ?        00:00:00 /usr/bin/lsmd -d
avahi      6584   6574  0 15:57 ?        00:00:00 avahi-daemon: chroot helper
chrony     6586      1  0 15:57 ?        00:00:00 /usr/sbin/chronyd
root       6587      1  0 15:57 ?        00:00:00 /usr/bin/VGAuthService -s
root       6588      1  0 15:57 ?        00:00:14 /usr/bin/vmtoolsd
root       6590      1  0 15:57 ?        00:00:00 /usr/sbin/ModemManager
root       6591      1  0 15:57 ?        00:00:00 /usr/libexec/accounts-daemon
root       6595      1  0 15:57 ?        00:00:00 /usr/sbin/abrtd -d -s
root       6596      1  0 15:57 ?        00:00:00 /usr/sbin/gssproxy -D
root       6601      1  0 15:57 ?        00:00:00 /usr/bin/abrt-watch-log -F BUG: WARNING: a
root       6604      1  0 15:57 ?        00:00:00 /usr/bin/abrt-watch-log -F Backtrace /var/
root       6606      1  0 15:57 ?        00:00:00 /usr/libexec/udisks2/udisksd
rtkit      6610      1  0 15:57 ?        00:00:00 /usr/libexec/rtkit-daemon
dbus       6622      1  0 15:57 ?        00:00:01 /usr/bin/dbus-daemon --system --address=sy
root       6685      1  0 15:57 ?        00:00:00 /usr/bin/python -Es /usr/sbin/firewalld --
root       6690      1  0 15:57 ?        00:00:00 /bin/bash /usr/sbin/ksmtuned
root       6697      1  0 15:57 ?        00:00:00 /usr/sbin/NetworkManager --no-daemon
root       7224      1  0 15:57 ?        00:00:00 /usr/sbin/cupsd -f
root       7225      1  0 15:57 ?        00:00:02 /usr/bin/python2 -Es /usr/sbin/tuned -l -P
root       7228      1  0 15:57 ?        00:00:00 /usr/sbin/sshd -D
root       7229      1  0 15:57 ?        00:00:01 /usr/sbin/rsyslogd -n
root       7234      1  0 15:57 ?        00:00:01 /usr/sbin/libvirtd
root       7244      1  0 15:57 ?        00:00:00 /usr/sbin/crond -n
root       7245      1  0 15:57 ?        00:00:00 /usr/sbin/gdm
root       7247      1  0 15:57 ?        00:00:00 /usr/sbin/atd -f
nobody     7496      1  0 15:57 ?        00:00:00 /usr/sbin/dnsmasq --conf-file=/var/lib/lib
root       7497   7496  0 15:57 ?        00:00:00 /usr/sbin/dnsmasq --conf-file=/var/lib/lib
root       7521      1  0 15:57 ?        00:00:00 /usr/libexec/postfix/master -w
root       7535   7245  0 15:57 tty1     00:00:11 /usr/bin/X :0 -background none -noreset -a
postfix    7537   7521  0 15:57 ?        00:00:00 qmgr -l -t unix -u
root       7713      1  0 15:57 ?        00:00:00 /usr/libexec/upowerd
root       7775      1  0 15:57 ?        00:00:00 /usr/libexec/boltd
root       7780      1  0 15:57 ?        00:00:00 /usr/libexec/packagekitd
root       7785      1  0 15:57 ?        00:00:00 /usr/sbin/wpa_supplicant -u -f /var/log/wp
colord     7876      1  0 15:57 ?        00:00:00 /usr/libexec/colord
root       7936   7245  0 15:57 ?        00:00:00 gdm-session-worker [pam/gdm-password]
ithao      7949      1  0 15:57 ?        00:00:00 /usr/bin/gnome-keyring-daemon --daemonize 
gdm        7954      1  0 15:57 ?        00:00:00 ibus-daemon --xim --panel disable
gdm        7959   7954  0 15:57 ?        00:00:00 /usr/libexec/ibus-dconf
ithao      7961   7936  0 15:57 ?        00:00:00 /usr/libexec/gnome-session-binary --sessio
gdm        7964      1  0 15:57 ?        00:00:00 /usr/libexec/ibus-x11 --kill-daemon
ithao      7979      1  0 15:57 ?        00:00:00 dbus-launch --sh-syntax --exit-with-sessio
ithao      7980      1  0 15:57 ?        00:00:00 /usr/bin/dbus-daemon --fork --print-pid 5 
ithao      8043      1  0 15:57 ?        00:00:00 /usr/libexec/gvfsd
ithao      8048      1  0 15:57 ?        00:00:00 /usr/libexec/gvfsd-fuse /run/user/1000/gvf
ithao      8151   7961  0 15:57 ?        00:00:00 /usr/bin/ssh-agent /bin/sh -c exec -l /bin
ithao      8169      1  0 15:57 ?        00:00:00 /usr/libexec/at-spi-bus-launcher
ithao      8174   8169  0 15:57 ?        00:00:00 /usr/bin/dbus-daemon --config-file=/usr/sh
ithao      8179      1  0 15:57 ?        00:00:00 /usr/libexec/at-spi2-registryd --use-gnome
ithao      8206   7961  0 15:57 ?        00:00:43 /usr/bin/gnome-shell
ithao      8216      1  0 15:57 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=s
ithao      8231   8206  0 15:57 ?        00:00:00 ibus-daemon --xim --panel disable
ithao      8235   8231  0 15:57 ?        00:00:00 /usr/libexec/ibus-dconf
ithao      8240      1  0 15:57 ?        00:00:00 /usr/libexec/ibus-x11 --kill-daemon
ithao      8243      1  0 15:57 ?        00:00:00 /usr/libexec/ibus-portal
ithao      8252      1  0 15:57 ?        00:00:00 /usr/libexec/xdg-permission-store
ithao      8253      1  0 15:57 ?        00:00:00 /usr/libexec/gnome-shell-calendar-server
ithao      8267      1  0 15:57 ?        00:00:00 /usr/libexec/evolution-source-registry
ithao      8279      1  0 15:57 ?        00:00:00 /usr/libexec/goa-daemon
ithao      8281      1  0 15:57 ?        00:00:00 /usr/libexec/mission-control-5
ithao      8285      1  0 15:57 ?        00:00:00 /usr/libexec/gvfs-udisks2-volume-monitor
ithao      8296      1  0 15:57 ?        00:00:00 /usr/libexec/gvfs-afc-volume-monitor
ithao      8309      1  0 15:57 ?        00:00:00 /usr/libexec/gvfs-gphoto2-volume-monitor
ithao      8315      1  0 15:57 ?        00:00:01 /usr/libexec/goa-identity-service
ithao      8328      1  0 15:57 ?        00:00:00 /usr/libexec/gvfs-mtp-volume-monitor
ithao      8337      1  0 15:57 ?        00:00:00 /usr/libexec/gvfs-goa-volume-monitor
ithao      8361   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-power
ithao      8363   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-print-notifications
ithao      8367   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-rfkill
ithao      8373   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-screensaver-proxy
ithao      8377   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-sharing
ithao      8381   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-sound
ithao      8384   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-xsettings
ithao      8386   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-wacom
ithao      8387   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-smartcard
ithao      8391   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-account
ithao      8407   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-a11y-settings
ithao      8409   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-clipboard
ithao      8415   7961  0 15:57 ?        00:00:02 /usr/libexec/gsd-color
ithao      8418   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-datetime
ithao      8421      1  0 15:57 ?        00:00:00 /usr/libexec/evolution-calendar-factory
ithao      8422   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-housekeeping
ithao      8430   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-keyboard
ithao      8434   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-media-keys
ithao      8437   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-mouse
ithao      8470      1  0 15:57 ?        00:00:00 /usr/libexec/gsd-printer
ithao      8487   7961  0 15:57 ?        00:00:02 nautilus-desktop --force
ithao      8489   8421  0 15:57 ?        00:00:00 /usr/libexec/evolution-calendar-factory-su
ithao      8498   8043  0 15:57 ?        00:00:00 /usr/libexec/gvfsd-trash --spawner :1.3 /o
ithao      8514      1  0 15:57 ?        00:00:00 /usr/libexec/dconf-service
ithao      8528      1  0 15:57 ?        00:00:16 /usr/bin/vmtoolsd -n vmusr
ithao      8529   7961  0 15:57 ?        00:00:00 /usr/libexec/gsd-disk-utility-notify
ithao      8531      1  0 15:57 ?        00:00:00 /usr/libexec/evolution-addressbook-factory
ithao      8532   8231  0 15:57 ?        00:00:00 /usr/libexec/ibus-engine-simple
ithao      8533   7961  0 15:57 ?        00:00:00 /usr/bin/seapplet
ithao      8543   7961  0 15:57 ?        00:00:00 abrt-applet
ithao      8546   7961  0 15:57 ?        00:00:01 /usr/bin/gnome-software --gapplication-ser
ithao      8562   8531  0 15:57 ?        00:00:00 /usr/libexec/evolution-addressbook-factory
ithao      8566   7961  0 15:57 ?        00:00:00 /usr/libexec/tracker-extract
ithao      8572   7961  0 15:57 ?        00:00:00 /usr/libexec/tracker-miner-apps
ithao      8575   7961  0 15:57 ?        00:00:00 /usr/libexec/tracker-miner-fs
ithao      8585   7961  0 15:57 ?        00:00:00 /usr/libexec/tracker-miner-user-guides
ithao      8606      1  0 15:57 ?        00:00:00 /usr/libexec/tracker-store
root       8910      1  0 15:57 ?        00:00:00 /usr/libexec/fwupd/fwupd
ithao      9807      1  0 16:07 ?        00:00:00 /usr/libexec/gnome-terminal-server
ithao      9813   9807  0 16:07 ?        00:00:00 gnome-pty-helper
ithao      9814   9807  0 16:07 pts/0    00:00:00 bash
ithao     10918      1  0 16:45 ?        00:00:00 /usr/libexec/gvfsd-metadata
ithao     11256   8043  0 16:58 ?        00:00:00 /usr/libexec/gvfsd-network --spawner :1.3 
ithao     11270   8043  0 16:58 ?        00:00:00 /usr/libexec/gvfsd-dnssd --spawner :1.3 /o
ithao     11332      1  0 16:59 ?        00:00:00 /usr/libexec/bluetooth/obexd
root      12707      2  0 18:29 ?        00:00:00 [kworker/u256:2]
postfix   13858   7521  0 19:17 ?        00:00:00 pickup -l -t unix -u
root      14320   7228  0 19:46 ?        00:00:00 sshd: ithao [priv]
ithao     14326  14320  0 19:46 ?        00:00:00 sshd: ithao@pts/1
ithao     14329  14326  0 19:46 pts/1    00:00:00 -bash
root      14390  14329  0 19:49 pts/1    00:00:00 su root
root      14399  14390  0 19:49 pts/1    00:00:00 bash
root      15063      2  0 20:21 ?        00:00:00 [kworker/0:1]
root      15425      2  0 20:40 ?        00:00:00 [kworker/0:3]
ithao     15497      1  0 20:42 ?        00:00:00 /usr/bin/nautilus --gapplication-service
root      15527      2  0 20:42 ?        00:00:00 [kworker/u256:0]
root      15624   6697  0 20:44 ?        00:00:00 /sbin/dhclient -d -q -sf /usr/libexec/nm-d
root      15680      2  0 20:47 ?        00:00:00 [kworker/0:0]
root      15699      2  0 20:48 ?        00:00:00 [kworker/0:2]
root      15742   6690  0 20:51 ?        00:00:00 sleep 60
root      15745  14399  0 20:52 pts/1    00:00:00 ps -ef
[root@localhost ithao]# ps -u ithao
   PID TTY          TIME CMD
  7949 ?        00:00:00 gnome-keyring-d
  7961 ?        00:00:00 gnome-session-b
  7979 ?        00:00:00 dbus-launch
  7980 ?        00:00:00 dbus-daemon
  8043 ?        00:00:00 gvfsd
  8048 ?        00:00:00 gvfsd-fuse
  8151 ?        00:00:00 ssh-agent
  8169 ?        00:00:00 at-spi-bus-laun
  8174 ?        00:00:00 dbus-daemon
  8179 ?        00:00:00 at-spi2-registr
  8206 ?        00:00:45 gnome-shell
  8216 ?        00:00:00 pulseaudio
  8231 ?        00:00:00 ibus-daemon
  8235 ?        00:00:00 ibus-dconf
  8240 ?        00:00:00 ibus-x11
  8243 ?        00:00:00 ibus-portal
  8252 ?        00:00:00 xdg-permission-
  8253 ?        00:00:00 gnome-shell-cal
  8267 ?        00:00:00 evolution-sourc
  8279 ?        00:00:00 goa-daemon
  8281 ?        00:00:00 mission-control
  8285 ?        00:00:00 gvfs-udisks2-vo
  8296 ?        00:00:00 gvfs-afc-volume
  8309 ?        00:00:00 gvfs-gphoto2-vo
  8315 ?        00:00:01 goa-identity-se
  8328 ?        00:00:00 gvfs-mtp-volume
  8337 ?        00:00:00 gvfs-goa-volume
  8361 ?        00:00:00 gsd-power
  8363 ?        00:00:00 gsd-print-notif
  8367 ?        00:00:00 gsd-rfkill
  8373 ?        00:00:00 gsd-screensaver
  8377 ?        00:00:00 gsd-sharing
  8381 ?        00:00:00 gsd-sound
  8384 ?        00:00:00 gsd-xsettings
  8386 ?        00:00:00 gsd-wacom
  8387 ?        00:00:00 gsd-smartcard
  8391 ?        00:00:00 gsd-account
  8407 ?        00:00:00 gsd-a11y-settin
  8409 ?        00:00:00 gsd-clipboard
  8415 ?        00:00:02 gsd-color
  8418 ?        00:00:00 gsd-datetime
  8421 ?        00:00:00 evolution-calen
  8422 ?        00:00:00 gsd-housekeepin
  8430 ?        00:00:00 gsd-keyboard
  8434 ?        00:00:00 gsd-media-keys
  8437 ?        00:00:00 gsd-mouse
  8470 ?        00:00:00 gsd-printer
  8487 ?        00:00:02 nautilus-deskto
  8489 ?        00:00:00 evolution-calen
  8498 ?        00:00:00 gvfsd-trash
  8514 ?        00:00:00 dconf-service
  8528 ?        00:00:16 vmtoolsd
  8529 ?        00:00:00 gsd-disk-utilit
  8531 ?        00:00:00 evolution-addre
  8532 ?        00:00:00 ibus-engine-sim
  8533 ?        00:00:00 seapplet
  8543 ?        00:00:00 abrt-applet
  8546 ?        00:00:01 gnome-software
  8562 ?        00:00:00 evolution-addre
  8566 ?        00:00:00 tracker-extract
  8572 ?        00:00:00 tracker-miner-a
  8575 ?        00:00:00 tracker-miner-f
  8585 ?        00:00:00 tracker-miner-u
  8606 ?        00:00:00 tracker-store
  9807 ?        00:00:00 gnome-terminal-
  9813 ?        00:00:00 gnome-pty-helpe
  9814 pts/0    00:00:00 bash
 10918 ?        00:00:00 gvfsd-metadata
 11256 ?        00:00:00 gvfsd-network
 11270 ?        00:00:00 gvfsd-dnssd
 11332 ?        00:00:00 obexd
 14326 ?        00:00:00 sshd
 14329 pts/1    00:00:00 bash
 15497 ?        00:00:00 nautilus
[root@localhost ithao]# ps
   PID TTY          TIME CMD
 14390 pts/1    00:00:00 su
 14399 pts/1    00:00:00 bash
 15831 pts/1    00:00:00 ps
[root@localhost ithao]# kill 7961
[root@localhost ithao]# kill -KILL 7949
bash: kill: (7949) - 没有那个进程
[root@localhost ithao]# shutdown -h now

Last failed login: Mon Aug  3 21:54:47 CST 2020 from :0 on :0
There were 2 failed login attempts since the last successful login.
Last login: Mon Aug  3 21:00:17 2020
[ithao@localhost ~]$ who
ithao    :0           2020-08-03 21:00 (:0)
ithao    pts/0        2020-08-03 21:01 (192.168.11.1)
[ithao@localhost ~]$ 
[ithao@localhost ~]$ who -h
who：无效选项 -- h
Try 'who --help' for more information.
[ithao@localhost ~]$ who -H
名称   线路       时间           备注
ithao    :0           2020-08-03 21:00 (:0)
ithao    pts/0        2020-08-03 21:01 (192.168.11.1)
[ithao@localhost ~]$ timedatectl status
      Local time: 一 2020-08-03 21:02:30 CST
  Universal time: 一 2020-08-03 13:02:30 UTC
        RTC time: 一 2020-08-03 13:02:30
       Time zone: Asia/Shanghai (CST, +0800)
     NTP enabled: yes
NTP synchronized: no
 RTC in local TZ: no
      DST active: n/a
[ithao@localhost ~]$ timedatectl
      Local time: 一 2020-08-03 21:02:51 CST
  Universal time: 一 2020-08-03 13:02:51 UTC
        RTC time: 一 2020-08-03 13:02:51
       Time zone: Asia/Shanghai (CST, +0800)
     NTP enabled: yes
NTP synchronized: no
 RTC in local TZ: no
      DST active: n/a
[ithao@localhost ~]$ timedatectl set-ntp true
[ithao@localhost ~]$ date
2020年 08月 03日 星期一 21:05:52 CST
[ithao@localhost ~]$ clear
[ithao@localhost ~]$ ls
公共  模板  视频  图片  文档  下载  音乐  桌面
[ithao@localhost ~]$ cd
[ithao@localhost ~]$ cd
[ithao@localhost ~]$ cd root
-bash: cd: root: 没有那个文件或目录
[ithao@localhost ~]$ ls -al ~
总用量 40
drwx------. 15 ithao ithao 4096 8月   3 21:00 .
drwxr-xr-x.  9 root  root   131 8月   3 20:35 ..
-rw-------.  1 ithao ithao  482 8月   3 20:58 .bash_history
-rw-r--r--.  1 ithao ithao   18 10月 31 2018 .bash_logout
-rw-r--r--.  1 ithao ithao  193 10月 31 2018 .bash_profile
-rw-r--r--.  1 ithao ithao  231 10月 31 2018 .bashrc
drwx------. 19 ithao ithao 4096 8月   4 2020 .cache
drwxr-xr-x. 16 ithao ithao 4096 8月   3 20:42 .config
drwx------.  3 ithao ithao   25 8月   3 2020 .dbus
-rw-------.  1 ithao ithao   16 8月   3 2020 .esd_auth
-rw-------.  1 ithao ithao 1554 8月   3 21:00 .ICEauthority
drwx------.  3 ithao ithao   19 8月   3 2020 .local
drwxr-xr-x.  4 ithao ithao   39 8月   3 2020 .mozilla
-rw-------.  1 ithao ithao  817 8月   3 2020 .viminfo
drwxr-xr-x.  2 ithao ithao    6 8月   3 2020 公共
drwxr-xr-x.  2 ithao ithao    6 8月   3 2020 模板
drwxr-xr-x.  2 ithao ithao    6 8月   3 2020 视频
drwxr-xr-x.  2 ithao ithao   70 8月   3 20:42 图片
drwxr-xr-x.  2 ithao ithao    6 8月   3 2020 文档
drwxr-xr-x.  2 ithao ithao    6 8月   3 2020 下载
drwxr-xr-x.  2 ithao ithao    6 8月   3 2020 音乐
drwxr-xr-x.  2 ithao ithao    6 8月   3 2020 桌面
[ithao@localhost ~]$ ls -l
总用量 0
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 公共
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 模板
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 视频
drwxr-xr-x. 2 ithao ithao 70 8月   3 20:42 图片
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 文档
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 下载
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 音乐
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 桌面
[ithao@localhost ~]$ pwd -p
-bash: pwd: -p: 无效选项
pwd: 用法:pwd [-LP]
[ithao@localhost ~]$ mkdir jinyanlong
[ithao@localhost ~]$ -l
bash: -l: 未找到命令...
[ithao@localhost ~]$ ls-l
bash: ls-l: 未找到命令...
[ithao@localhost ~]$ ls -l
总用量 0
drwxrwxr-x. 2 ithao ithao  6 8月   3 21:15 jinyanlong
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 公共
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 模板
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 视频
drwxr-xr-x. 2 ithao ithao 70 8月   3 20:42 图片
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 文档
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 下载
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 音乐
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 桌面
[ithao@localhost ~]$ mkdir -p aaa/bbb
[ithao@localhost ~]$ ls -l
总用量 0
drwxrwxr-x. 3 ithao ithao 17 8月   3 21:16 aaa
drwxrwxr-x. 2 ithao ithao  6 8月   3 21:15 jinyanlong
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 公共
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 模板
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 视频
drwxr-xr-x. 2 ithao ithao 70 8月   3 20:42 图片
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 文档
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 下载
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 音乐
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 桌面
[ithao@localhost ~]$ rmdir jinyanlong
[ithao@localhost ~]$ rmdir -p aaa/bbb
[ithao@localhost ~]$ mkdir -p aaa/bbb
[ithao@localhost ~]$ mkidr -p ccc
bash: mkidr: 未找到命令...
相似命令是： 'mkdir'
[ithao@localhost ~]$ mkdir -p ccc
[ithao@localhost ~]$ cp -r aaa/* ccc
[ithao@localhost ~]$ rm -r ccc
[ithao@localhost ~]$ rm -r aaa
[ithao@localhost ~]$ adduser java
-bash: /usr/sbin/adduser: 权限不够
[ithao@localhost ~]$ su root
密码：
[root@localhost ithao]# groupadd -g 8888 dev-group
groupadd：GID “8888”已经存在
[root@localhost ithao]# mkdir /tmp/project2019
[root@localhost ithao]# chown -r :dev-group /tmp/project2019
chown：无效选项 -- r
Try 'chown --help' for more information.
[root@localhost ithao]# chown -R :dev-group /tmp/project2019
chown: 无效的组: ":dev-group"
[root@localhost ithao]# adduser java
[root@localhost ithao]# adduser erlang
[root@localhost ithao]# adduser golang
[root@localhost ithao]# gpasswd -a java dev-group
gpasswd：dev-group 组不存在于 /etc/group 中
[root@localhost ithao]# groupadd -g 8898 dev-group
[root@localhost ithao]# gpasswd -a java dev-group
正在将用户“java”加入到“dev-group”组中
[root@localhost ithao]# gpasswd -a erlang dev-group
正在将用户“erlang”加入到“dev-group”组中
[root@localhost ithao]# gpasswd -a golang dev-group
正在将用户“golang”加入到“dev-group”组中
[root@localhost ithao]# grep 'dev-group' /etc/group
dev-group:x:8898:java,erlang,golang
[root@localhost ithao]# su java
[java@localhost ithao]$ mkdir hava-files-new
mkdir: 无法创建目录"hava-files-new": 权限不够
[java@localhost ithao]$ su root
密码：
[root@localhost ithao]# mkdir java-files-new
[root@localhost ithao]# ls -l
总用量 0
drwxr-xr-x. 2 root  root   6 8月   3 21:34 java-files-new
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 公共
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 模板
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 视频
drwxr-xr-x. 2 ithao ithao 70 8月   3 20:42 图片
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 文档
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 下载
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 音乐
drwxr-xr-x. 2 ithao ithao  6 8月   3 2020 桌面
[root@localhost ithao]# 